Freshwater acidification research in Atlantic Canada: A review of results and predictions for the future

Environmental Reviews

Volumn 15, Issue , 2007, Pages 153-167

  Clair, Thomas A ^a   Dennis, Ian F ^a   Scruton, David A ^b   Gilliss, Mallory ^c  

^a ENVIRONMENT CANADA   (Canada)

^b FISHERIES AND OCEANS CANADA   (Canada)

^c NB Dept of Environment   (Canada)

Author keywords

Acidification; Atlantic Canada; Freshwater; Organic acidity; Total organic carbon

Indexed keywords

ACIDIFICATION; ACIDITY; AIR POLLUTION; DEPOSITION; HYDROCHEMISTRY; LAKES; ORGANIC ACIDS; PH; SULFUR COMPOUNDS; WATER; ORGANIC CARBON; PH EFFECTS;

ACID-BASE CHARACTERISTICS; ACID-NEUTRALIZATION CAPACITY; ATLANTIC CANADA; CONCURRENT REDUCTION; EASTERN NORTH AMERICA; FRESHWATER; FRESHWATER ACIDIFICATIONS; TOTAL ORGANIC CARBON;

ORGANIC CARBON; SURFACE WATERS;

ACIDIFICATION; ATLANTIC CANADA; CANADA; ORGANIC ACIDITY; UNITED STATES; WATER CHEMISTRY;

EID: 38049115876     PISSN: 11818700     EISSN: None     Source Type: Journal    
DOI: 10.1139/A07-004     Document Type: Review

References (89)

1. Allen, Y., Clair, T.A., Freedman, B., Maass, W., and Springer, T.S. 1992. Hydrogeochemistry and biophysical status of the Pine Marten Brook study area, Kejimkujik National Park: a preliminary description. Technical Report WRD-AR-MEB-92-181. Environment Canada-Atlantic Region, Dartmouth, NS. 34 pp
2. Altmann, R.S., and Buffle, J. 1988. The use of differential equilibrium functions for interpretation of metal binding in complex ligand systems: its relation to site occupation and site affinity distributions. Geochim. Cosmochim. Acta, 52: 1505-1519. 10.1016/0016-7037(88)90221-9
3. APHA. 1989. Standard methods for the examination of water and wastewater. 17th ed. American Public Health Association, Washington, DC
4. Baker, J.P., and Schofield, C.L. 1982. Aluminum toxicity to fish in acidic waters. Water Air Soil Pollut. 18: 289-309. 10.1007/BF02419419
5. Campbell, J.L., Hornbeck, J.W., Mitchell, M.J., Adams, M.B., Castro, M.S., Driscoll, C.T., Kahl, J.S., Kochenderfer, J.N., Likens, G.E., Lynch, J.A., Murdoch, P.S., Nelson, S.J., and Shanley, J.B. 2004. Input-output budgets of inorganic nitrogen for 24 forest watersheds in the northeastern United States: A review. Water Air Soil Pollut. 151: 373-396. 10.1023/B:WATE.0000009908.94219.04
6. Clair, T.A. 1992. Acid precipitation and weathering by organic acids in Labrador lake basins. Water Resour. Bull. 28: 507-515
7. Clair, T.A. 1995. Short-term chemistry variations in acidified Nova Scotian rivers and streams. In Proceedings of the 48th Annual Canadian Water Resources Association Conference, Fredericton, NB. Vol. 1, pp. 371-384
8. Clair, T.A., and Ehrman, J.M. 1995. Acid precipitation-related chemical trends in 18 rivers of Atlantic Canada-1983 to 1992. Environ. Monit. Assess. 35: 165-179. 10.1007/BF00633713
9. Clair, T.A., and Ehrman, J.M. 1996. Variation in discharge, dissolved organic carbon and nitrogen export from terrestrial basins with changes in climate: a neural network approach. Limnol. Oceanogr. 41: 921-927
10. Clair, T.A., and Freedman, B. 1986. Patterns and importance of dissolved organic carbon in four acidic brownwater streams in Nova Scotia, Canada. Water Air Soil Pollut. 31: 139-147. 10.1007/BF00630828
11. Clair, T.A., and Whitfield, P.H. 1983. Trends in pH, calcium, and sulfate in Atlantic Canadian rivers. Limnol. Oceanogr. 28: 160-165
12. Clair, T.A., Witteman, J.P., and Whitlow, S.H. 1982. Acid precipitation sensitivity of Canada's Atlantic Provinces. Inland Waters Directorate Technical Bulletin 124. Environment Canada, Ottawa, ON. 12 pp
13. Clair, T.A., Pollock, T.L., Collins, P., and Kramer, J.R. 1992. How brownwaters are influenced by acidification: the HUMEX lake case study. Environ. Int. 18: 589-596. 10.1016/0160-4120(92)90026-Z
14. Clair, T.A., Dillon, P.J., Ion, J., Jeffries, D.S., Papineau, M., and Vet, R.J. 1995. Regional precipitation and surface water chemistry trends in southeastern Canada (1983-91). Can. J. Fish. Aquat. Sci. 52: 197-212
15. Clair, T.A., Bobba, A.G., and Miller, K. 2001. a. Yearly changes in the seasonal frequency and duration of short-term acid pulses in some Nova Scotia, Canada streams. Environ. Geol. 40: 582-591. 10.1007/s002540000221
16. Clair, T.A., Lockerbie, D., and Ouellet, A. 2001 b. Environment Canada's Acid Precipitation Monitoring Networks in Atlantic Canada. Occasional Report No. 16 [CD-ROM]. Environment Canada-Atlantic Region Report, Sackville, NB
17. Clair, T.A., Dennis, I.F., and Cosby, B.J. 2003. Probable changes in lake chemistry in Canada's Atlantic Provinces under proposed North American emission reductions. Hydrol. Earth Syst. Sci. 7: 574-582
18. Clair, T.A., Dennis, I.F., Amiro, P., and Cosby, B.J. 2004. Past and future chemistry changes in acidified Nova Scotian Atlantic salmon (Salmo salar) rivers: A dynamic modeling approach. Can. J. Fish. Aquat. Sci. 61: 1965-1975. 10.1139/f04-196
19. Clair, T.A., Laudon, H., and Vet, R. 2005. Ion export trends and budgets in acidified, marine-influenced Nova Scotian catchments (interim report). Occasional Report No. 26. Environment Canada-Atlantic Region, Sackville, NB. 39 pp
20. Clair, T.A., Aherne, J., Dennis, I.F., Gilliss, M., Couture, S., McNicol, D., Weeber, R., Dillon, P.J., Keller, W., Jeffries, D.S., Page, S., Timoffee, K., and Cosby, B.J. 2007. Past and future changes to acidified eastern Canadian lakes: a geochemical modeling approach. Appl. Geochem.,. In press. 10.1016/j.apgeochem.2007.03.010
21. Cluis, D., Langlois, C., Coillie, R.V., and Laberge, C. 1989. Development of a software package for trend detection in temporal series: application to water and indurstrial effluent quality data for the St.Lawrence river. Environ. Monit. Assess. 12: 429-441
22. Cosby, B.J., Hornberger, G.M., Galloway, J.N., and Wright, R.F. 1985. Modeling the effects of acid deposition: Assessment of a lumped parameter model of soil water and streamwater chemistry. Water Resour. Res. 21: 51-63
23. Cosby, B.J., Ferrier, R.C., Jenkins, A., and Wright, R.F. 2001. Modelling the effects of acid deposition: refinements, adjustments and inclusion of nitrogen dynamics in the MAGIC model. Hydrol. Earth Syst. Sci. 5: 499-518
24. Cronan, C.S., Walker, W.J., and Bloom, P.R. 1986. Predicting aqueous aluminium concentrations in natural waters. Nature, 324: 140-143. 10.1038/324140a0
25. Dennis, I.F., Carter, L., Ouellet, A.J., Ro, C.-U., and Clair, T.A. 2005a. Acid precipitation monitoring networks in Atlantic Canada: Update 1982-2003. Occasional Report No. 24 [CD-ROM]. Environment Canada-Atlantic Region Report, Sackville, NB
26. Dennis, I.F., Clair, T.A., Driscoll, C.T., Kamman, N.C., Chalmers, A., Shanley, J.B., Norton, S.A., and Kahl, J.S. 2005. b. Patterns of surface water mercury distribution in northeastern North America. Ecotoxicology, 14: 113-123. 10.1007/s10646-004-6263-0 15931962
27. Dennis, I.F., Clair, T.A., and Cosby, B.J. 2005. c. A new model validation approach to test the MAGIC model in highly organic, low conductivity waters from Nova Scotia, Canada. Environ. Model. Assess. 10.1007/s10666-005-9010-x
28. Drever, J.I. 1994. The effect of land plants on weathering rates of silicate minerals. Geochim. Cosmochim. Acta, 58: 2325-2332. 10.1016/0016-7037(94)90013-2
29. Driscoll, C.T., Fuller, R.D., and Schecher, W.D. 1989. The role of organic acids in the acidification of surface waters in the Eastern U.S. Water Air Soil Pollut. 43: 21-40. 10.1007/BF00175580
30. Dupont, J., Clair, T.A., Gagnon, C., Jeffries, D.S., Kahl, J.S., Nelson, S.J., and Peckenham, J.M. 2005. Estimation of Critical Loads of Acidity for Lakes in Northeastern United States and Eastern Canada. Environ. Monit. Assess. 109: 275-292. 10.1007/s10661-005-6286-x 16240203
31. Esterby, S.R., El-Shaarawi, A.H., Howell, G.D., and Clair, T.A. 1989. Grouping of lakes on the basis of water quality variables: an application to Nova Scotia and Newfoundland Lakes. National Water Research Institute Contribution No. 89-24. Environment Canada, Burlington, ON
32. Evers, D.C., Kaplan, J.D., Meyer, M.W., Reaman, P.S., Braselton, W.E., Major, A., Burgess, N., and Scheuhammer, A. 1998. Geographic trend in mercury measured in Common Loon feathers and blood. Environ. Toxicol. Chem. 17: 173-183. 10.1897/1551-5028(1998)017<0173:GTIMMI>2.3.CO;2
33. Farrell, E.P., Van Den Beuken, R., Boyle, G.M., Cummins, T., and Aherne, J. 1998. Interception of seasalt by coniferous and broadleaved woodland in a maritime environment in western Ireland. Chemosphere, 36: 985-987. 10.1016/S0045-6535(97)10159-X
34. Freedman, B., and Clair, T.A. 1987. Ion mass balances and seasonal fluxes from four acidic brownwater streams in Nova Scotia. Can. J. Fish. Aquat. Sci. 44: 538-548
35. Gorham, E. 1957. The Chemical Composition of Lake Waters in Halifax County, Nova Scotia. Limnol. Oceanogr. 2: 12-21
36. Gorham, E., Underwood, J.K., Janssen, J.A., Freedman, B., Maass, W., Waller, D.H., and Ogden, J.G., III. 1998. The chemistry of streams in southwestern and central Nova Scotia, with particular reference to catchment vegetation and the influence of dissolved organic carbon primarily from wetlands. Wetlands, 18: 115-132
37. Gran, G. 1952. Determination of the equivalence point in potentiometric titrations: Part II. Analyst, 77: 661-671. 10.1039/an9527700661
38. Hayes, F.R., and Anthony, E.H. 1958. Lake water and sediment I-characteristics and water chemistry of some canadian east coast lakes. Limnol. Oceanogr. 3: 299-307
39. Heath, R.H., Kahl, J.S., and Norton, S.A. 1992. Episodic stream acidification caused by atmospheric deposition of sea salts at Acadia National Park, Maine, United States. Water Resour. Res. 28: 1081-1088. 10.1029/91WR03031
40. Hirsch, R.M., and Slack, J.R. 1984. A non-parametric trend test for seasonal data with serial dependence. Water Resour. Res. 20: 727-732
41. Jeffries, D.S., and Ouimet, R. 2005. Chapter 8: ChapterCritical loads: are they being exceeded? In Canadian acid deposition science assessment 2004. C2005-980004-6. Environment Canada, National Water Research Institute, Burlington, ON. pp. 341-369
42. Jeffries, D.S., Clair, T.A., Couture, S., Dillon, P.J., Franklyn, J., Keller, W., McNicol, D.K., Norouzian, F., Paterson, A.M., Turner, M.A., and Weeber, R.C. 2004. Effects on Aquatic Chemistry and Biology [CD-ROM]. In Canadian acid deposition science assessment. Edited by D.S. Jeffries, D.K. McNicol, and R.C. Weeber. Chapter 6, Section 6.3.2. Environment Canada, National Water Research Institute, Burlington, ON
43. Jeffries, D.S., McNicol, D.K., and Weeber, R.C. 2005. Chapter 6: Effects on aquatic chemistry and biology [CD-ROM]. In Canadian acid deposition science assessment 2004. C2005-980004-6. Environment Canada, National Water Research Institute, Burlington, ON. pp. 206-278
44. Junge, C.E. 1972. Our knowledge of the physico-chemistry of aerosols in the undisturbed marine environment. J. Geophys. Res. 77: 5183-5200
45. Kaminsky, J.W. 2002. Emissions-scenario simulations of new provincial SO2 reduction targets using the acid deposition and oxidant model. Contract no. 222-2002. Canadian Council of Ministers of the Environment Inc., Winnipeg, MB
46. Keizer, P.D., Gordon, D.C., Rowell, T.W., McCurdy, R., Borgal, D., Clair, T.A., Taylor, D., Ogden, J.G., III, and Hall, G.E.M. 1993. Synoptic water quality survey of Halifax/Dartmouth area lakes on April 16,1991. Can. Data Rep. Fish. Aquat. Sci. No. 914. Department of Fisheries and Oceans Canada, Dartmouth, NS. 76 pp
47. Kerekes, J., and Freedman, B. 1989. Characteristics of three acidic lakes in Kejimkujik National Park, Nova Scotia, Canada. Arch. Environ. Contam. Toxicol. 18: 183-200. 10.1007/BF01056203 2923490
48. Kerekes, J.J., and Schwinghamer, P. 1973. Aquatic Resource Inventory, Kejimkujik National Park, N.S., Part 5: Chemical composition of lake and river waters. Canadian Wildlife Service, Bedford Institute of Oceanography, Dartmouth, NS. 66 pp
49. Kerekes, J., Howell, G., Beauchamps, S., and Pollock, T.L. 1982. Characterization of three lake basins sensitive to acid precipitation in Central Nova Scotia. Int. Rev. Gesamten Hydrobiol. 67: 679-694
50. Kerekes, J., Howell, G., and Pollock, T. 1984. Problems associated with sulfate determination in colored, humic waters in Kejimkujik National Park, Nova Scotia (Canada). Verh. Internat. Verein. Limnol. 22: 1811-1817
51. Kerekes, J.J., Beauchamp, S., Tordon, R., and Pollock, T.L. 1986. a. Sources of sulphate and acidity in wetlands and lakes in Nova Scotia. Water Air Soil Pollut. 31: 207-214. 10.1007/BF00630835
52. Kerekes, J., Beauchamp, S., Tordon, R., Tremblay, C., and Pollock, T. 1986. b. Organic versus anthropogenic acidity in tributaries of the Kejimkujik watersheds in western Nova Scotia. Water Air Soil Pollut. 31: 165-173. 10.1007/BF00630831
53. Koprivnjak, J.F., Blanchette, J.G., Bourbonniere, R.A., Clair, T.A., Heyes, A., Lum, K.R., McRae, R., and Moore, T.R. 1995. The underestimation of concentrations of dissolved organic carbon in freshwaters. Water Res. 29: 91-94. 10.1016/0043-1354(94)00133-R
54. Kramer, J.R., Brassard, P., Collins, P., Clair, T.A., and Takats, P. 1990. Variability of organic acids in watersheds. In Organic acids in Aquatic Ecosystems. Edited by E.M. Perdue and E.T. Gjessing. J. Wiley and Sons Ltd, NY. pp. 127-139
55. Lacroix, G.L., and Townsend, D.R. 1987. Responses of juvenile Atlantic Salmon (Salmo salar) to episodic increases in acidity of Nova Scotia rivers. Can. J. Fish. Aquat. Sci. 44: 1475-1484
56. Lam, D.C.L., Puckett, K.J., Wong, I., Moran, M.D., Fenech, G., Jeffries, D.S., Olson, M.P., Whelpdale, D.M., McNichol, D., Mariam, Y.K.G., and Minns, C.K. 1998. An integrated acid rain assessment model for Canada: from source emission to ecological impact. Water Qual. Res. J. Can. 33: 1-17
57. Laudon, H., and Bishop, K. 2002. Episodic stream water pH decline during autumn storms following a summer drought in northern Sweden. Hydrol. Process. 16: 1725-1733. 10.1002/hyp.360
58. Laudon, H., Clair, T.A., and Hemond, H.F. 2002. Long-term response in episodic acidification to declining SO4-2 deposition in two streams in Nova Scotia. Hydrol. Earth Sys. Sci. 6: 773-781
59. Lawrence, G.B., Sutherland, J.W., Boylen, C.W., Nierzwicki-Bauer, S.W., Momen, B., Baldigo, B.P., and Simonin, H.A. 2007. Acid Rain Effects on Aluminum Mobilization Clarified by Inclusion of Strong Organic Acids. Environ. Sci. Technol. 41: 93-98. 10.1021/es061437v 17265932
60. Oliver, B.G., Thurmond, E.M., and Malcolm, R. 1983. The contribution of humic substances to the acidity of coloured natural waters. Geochim. Cosmochim. Acta, 47: 2031-2035. 10.1016/0016-7037(83)90218-1
61. Peterson, R.H. 1980. Water chemistry of ten lakes in southern New Brunswick. Can. Tech. Rep. No 962. Fisheries and Oceans Canada, St. Andrews, NB. 25pp
62. Peterson, R.H., Bourbonniere, R.A., Lacroix, G.L., Martin-Robichaud, D.J., Takats, P., and Brun, G.L. 1989. Responses of Atlantic Salmon (Salmo salar) alevins to dissolved organic carbon and dissolved aluminum at low pH. Water Air Soil Pollut. 46: 399-413
63. Pilgrim, W., Clair, T.A., Choate, J., and Hughes, R. 2003. Changes in acid precipitation-related water chemistry of lakes from southwestern New Brunswick, Canada, 1986-2001. Environ. Monit. Assess. 88: 39-52. 10.1023/A:1025592202153 14570410
64. Ryan, P.M., Scruton, D.A., and Stansbury, D.E. 1990. Acidification monitoring by the Department of Fisheries and Oceans in insular Newfoundland, Canada. Verh. Internat. Verein. Limnol. 24: 354-359
65. Scruton, D.A. 1983. A survey of headwater lakes in insular Newfoundland, with special reference to acid precipitation. Can. Tech. Rep. Fish. Aquat. Sci. No 1195. Fisheries and Oceans Canada, St. John's, NL. 110 pp
66. Scruton, D.A. 1984. A survey of selected lakes in Labrador, with an assessment of lake status and sensitivity in relation to acid precipitation. Can. Tech. Rep. Fish. Aquat. Sci. No 1296. Fisheries and Oceans Canada, St. John's, NL. 115 pp
67. Shaw, R.W. 1979. Acid precipitation in Atlantic Canada. Environ. Sci. Technol. 13: 406-411. 10.1021/es60152a006
68. Shilts, W.W. 1981. Sensitivity of bedrock to acid precipitation: modification by glacial processes. Paper 81-14. Geological Survey of Canada, Ottawa, ON
69. Skjelkvåle, B.L., Stoddard, J., Jeffries, D.S., Třrseth, K., Hřgísen, T., Bowman, J., Mannio, J., Monteith, D., Mosello, R., Rogora, M., Rzychon, D., Vesely, J., Wieting, J., Wilander, A., and Worsztynowicz, A. 2005. Regional scale evidence for improvements in surface water chemistry 1990-2001. Environ. Pollut. 136: 165-176
70. Stumm, W., Sigg, L., and Schnoor, J.L. 1987. Aquatic chemistry of acid deposition. Environ. Sci. Technol. 21: 8-13. 10.1021/es00155a001
71. Sullivan, T.J., Driscoll, C.T., Eilers, J.M., and Landers, D.H. 1988. Evaluation of the role of sea salt inputs in the long-term acidification of coastal New England lakes. Environ. Sci. Technol. 22: 185-190. 10.1021/es00167a009
72. Thomas, J.F.J. 1960. Water Survey Report #11, No. 864. Water Resources of Canada, Department of Mines and Technical Survey, Ottawa, ON
73. Thompson, M.E. 1982. Exchange of marine sodium for calcium during chemical weathering in the Isle aux Morts River basin, Newfoundland. Geochim. Cosmochim. Acta, 46: 361-365. 10.1016/0016-7037(82)90227-7
74. Thompson, M.E., Elder, F.C., Davis, A.R., and Whitlow, S. 1980. Evidence of acidification of rivers of eastern Canada. Ecological impact of acid precipitation. In Proceedings of the International Conference on the Ecological Impact of Acid Precipitation, Sandefjord, Norway, March 11-14, 1980. SNSF Project, Oslo, Norway. pp. 244-245
75. Van Breemen, N., Boyer, E.W., Goodale, C.L., Jaworski, N.A., Paustian, K., Seitzinger, S.P., Lajtha, K., Mayer, B., Van Dam, D., Howarth, R.W., Nadelhoffer, K.J., Eve, M., and Billen, G. 2002. Where did all the nitrogen go? Fate of nitrogen inputs to large watersheds in the northeastern U.S.A. Biogeochemistry, 57/58: 267-293
76. Vet, R., Brook, J., Ro, C., Shaw, M., Narayan, J., Zhang, L., Moran, M., and Lusis, M. 2005. Atmospheric response to past emission control programs. In 2004 Canadian Acid Deposition Science Assessment 2004. C2005-980004-6. Environment Canada, Meteorological Service of Canada, Ottawa, ON. pp 15-98
77. Watmough, S.A., and Dillon, P.J. 2003. Base cation and nitrogen budgets for seven forested catchments in central Ontario, 1983-1999. For. Ecol. Manage. 177: 155-177
78. Watmough, S.A., Aherne, J., Alewell, C., Arp, P., Bailey, S., Clair, T., Dillon, P., Duchesne, L., Eimers, C., Fernandez, I., Foster, N., Larssen, T., Miller, E., Mitchell, M., and Page, S. 2005. Sulphate, Nitrogen and Base Cation Budgets at 21 Forested Catchments in Canada, the United States and Europe. Environ. Monit. Assess. 109: 1-36. 10.1007/s10661-005-4336-z 16240186
79. Watt, W.D., Scott, D., and Ray, S. 1979. Acidification and other chemical changes in Halifax County lakes after 21 years. Limnol. Oceanogr. 24: 1154-1161
80. Watt, W.D., Scott, C.D., and White, J.W. 1983. Evidence of acidification of some Nova Scotia rivers and its impact on Atlantic salmon, Salmo salar. Can. J. Fish. Aquat. Sci. 40: 462-473
81. Watt, W.D., Scott, C.D., Zamora, P.J., and White, W.J. 2000. Acid toxicity levels in Nova Scotian rivers have not declined in synchrony with the decline in sulfate levels. Water Air Soil Pollut. 118: 203-229. 10.1023/A:1005115226251
82. Weathers, K.C. 1999. The importance of cloud and fog in the maintenance of ecosystems. Trends Ecol. Evol. 14: 214-215. 10.1016/S0169-5347(99)01635-3 10354622
83. Whitfield, C.J., Aherne, J., Watmough, S.A., Dillon, P.J., and Clair, T.A. 2006. a. Recovery from acidification in Nova Scotia: temporal trends and critical loads for 20 headwater lakes. Can. J. Fish. Aquat. Sci. 63: 1504-1514. 10.1139/F06-053
84. Whitfield, C.J., Watmough, S.A., Aherne, J., and Dillon, P.J. 2006. b. A comparison of weathering rates for acid-sensitive catchments in Nova Scotia, Canada and their impact on critical load calculations. Geoderma, 136: 899-911. 10.1016/j.geoderma.2006.06.004
85. Wigington, P.J., Jr., Davies, T.D., Tranter, M., and Eshleman, K.N. 1992. Comparison of episodic acidification in Canada Europe and the United States. Environ. Pollut. 78: 29-35. 10.1016/0269-7491(92)90006-V 15091924
86. Wright, R.F., Norton, S.A., Brakke, D.F., and Frogner, T. 1988. Experimental verification of episodic acidification of freshwaters by sea salts. Nature, 334: 422-424. 10.1038/334422a0
87. Wright, R.F., Alewell, C., Cullen, J.M., Evans, C.D., Marchetto, A., Moldan, F., Prechtel, A., and Rogora, M. 2001. Trends in nitrogen deposition and leaching in acid-sensitive streamsin Europe. Hydrol. Earth Syst. Sci. 5: 299-310
88. Yanni, S., Keys, K., Clair, T.A., and Arp, P.A. 2000. a. Fog and acidification impacts on ion budgets of basins in Nova Scotia, Canada. J. Am. Water Resour. Assoc. 36: 619-631
89. Yanni, S., Keys, K., Meng, F.R., Yin, X.W., Clair, T., and Arp, P.A. 2000. b. Modelling hydrological conditions in the maritime forest region of south-western Nova Scotia. Hydrol. Process. 14: 195-214. 10.1002/(SICI)1099-1085(20000215)14:2<195::AID-HYP1>3.0.CO;2-C